11133304656 has 80 divisors (see below), whose sum is σ = 30018703680. Its totient is φ = 3552240640.

The previous prime is 11133304649. The next prime is 11133304703. The reversal of 11133304656 is 65640333111.

It is a super-2 number, since 2×11133304656² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50935 + ... + 157673.

It is an arithmetic number, because the mean of its divisors is an integer number (375233796).

Almost surely, 2^11133304656 is an apocalyptic number.

11133304656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11133304656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15009351840).

11133304656 is an abundant number, since it is smaller than the sum of its proper divisors (18885399024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11133304656 is a wasteful number, since it uses less digits than its factorization.

11133304656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106844 (or 106838 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

Adding to 11133304656 its reverse (65640333111), we get a palindrome (76773637767).

The spelling of 11133304656 in words is "eleven billion, one hundred thirty-three million, three hundred four thousand, six hundred fifty-six".